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This is a general description video on how we start an Airbus A320 APU, An Auxiliary Power Unit or APU allows an aircraft to operate autonomously without reliance on ground support equipment such as a ground power unit, an external air-conditioning unit or a high pressure air start cart.The APU is a small jet engine which is normally located in the tail cone of the aircraft it’s not used for propulsion but to supply electrical and pneumatics to support other aircraft functions when engines are off on flights during emergencies#aviation #aircraft #airbus #a320 #airplane #aviationlovers #apu #power#start #auxillary #unit #electrical #pneumatics